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C68800 Brass vs. ZE41A Magnesium

C68800 brass belongs to the copper alloys classification, while ZE41A magnesium belongs to the magnesium alloys. There are 29 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown. Please note that the two materials have significantly dissimilar densities. This means that additional care is required when interpreting the data, because some material properties are based on units of mass, while others are based on units of area or volume.

For each property being compared, the top bar is C68800 brass and the bottom bar is ZE41A magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
45
Elongation at Break, % 2.0 to 36
3.3
Poisson's Ratio 0.32
0.29
Shear Modulus, GPa 41
18
Shear Strength, MPa 380 to 510
150
Tensile Strength: Ultimate (UTS), MPa 570 to 890
210
Tensile Strength: Yield (Proof), MPa 390 to 790
140

Thermal Properties

Latent Heat of Fusion, J/g 190
330
Maximum Temperature: Mechanical, °C 160
150
Melting Completion (Liquidus), °C 960
640
Melting Onset (Solidus), °C 950
540
Specific Heat Capacity, J/kg-K 400
970
Thermal Conductivity, W/m-K 40
110
Thermal Expansion, µm/m-K 19
27

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 18
27
Electrical Conductivity: Equal Weight (Specific), % IACS 20
130

Otherwise Unclassified Properties

Base Metal Price, % relative 26
18
Density, g/cm3 8.2
1.9
Embodied Carbon, kg CO2/kg material 2.8
24
Embodied Energy, MJ/kg 48
170
Embodied Water, L/kg 350
940

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 16 to 180
6.1
Resilience: Unit (Modulus of Resilience), kJ/m3 710 to 2860
220
Stiffness to Weight: Axial, points 7.3
13
Stiffness to Weight: Bending, points 19
63
Strength to Weight: Axial, points 19 to 30
31
Strength to Weight: Bending, points 19 to 25
41
Thermal Diffusivity, mm2/s 12
59
Thermal Shock Resistance, points 19 to 30
12

Alloy Composition

Aluminum (Al), % 3.0 to 3.8
0
Cobalt (Co), % 0.25 to 0.55
0
Copper (Cu), % 70.8 to 75.5
0 to 0.1
Iron (Fe), % 0 to 0.2
0
Lead (Pb), % 0 to 0.050
0
Magnesium (Mg), % 0
91.7 to 95.4
Manganese (Mn), % 0
0 to 0.15
Nickel (Ni), % 0
0 to 0.010
Unspecified Rare Earths, % 0
0.75 to 1.8
Zinc (Zn), % 21.3 to 24.1
3.5 to 5.0
Zirconium (Zr), % 0
0.4 to 1.0
Residuals, % 0
0 to 0.3